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Finding the Fourth Proportional to 517,649.49, 776,661.06 and 180,739.77

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Solution

The fourth proportional to 517,649.49, 776,661.06 and 180,739.77 is: 271,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,649.49 : 776,661.06 = 180,739.77 : x
  2. Step 2: Convert to fraction form
    517,649.49/776,661.06 = 180,739.77/x
  3. Step 3: Cross multiply
    517,649.49x = 776,661.06 × 180,739.77
  4. Step 4: Simplify right side
    517,649.49x = 140,373,541,352.36
  5. Step 5: Solve for x
    x = 140,373,541,352.36/517,649.49
  6. Step 6: Final answer
    x = 271,174.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.